Nitrogen Oxide Reduction by Staged Combustion of Biomass Gas in Gas Turbines - A Modeling Study of the Effect of Mixing

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Title Nitrogen Oxide Reduction by Staged Combustion of Biomass Gas in Gas Turbines - A Modeling Study of the Effect of Mixing
Creator Coda Zabetta, Edgardo G.; Kilipinen, Pia T.; Hupa, Mikko M.; Leppalahti, Jukka K.; Stahl, C. Krister O.; Cannon, Michael F.; Nieminen, Jorma
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1998
Spatial Coverage presented at Maui, Hawaii
Abstract Detailed chemical kinetic modeling has been used to study the reduction of nitrogen oxides at gas turbine combustion chamber conditions. A biomass-derived gasification gas from an air-blown IGCC plant has been used as the fuel. Air has been the oxidizer. A staged combustion technique has been adopted. In our previous study a simple plug flow model was used to study the effects of many process parameters like pressure, temperature, number of air addition stages, air-fuel stoichiometry, and fuel composition on the NOx emission. The calculations showed pressure and temperature as the main affecting variables. In this work the effect of the various mixing models of air and fuel are studied. A varying number of air sub-streams are mixed with the fuel gas during different time periods. Alternatively, a combination of a perfectly mixed zone followed by a plug flow zone is illustrated. The results showed that models predict an enhanced nitrogen oxide reduction when a mixing delay between air and fuel is considered as compared to an instantaneous mixing.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician Cliodhna Davis
Metadata Cataloger Kendra Yates
ARK ark:/87278/s6rr21v9
Setname uu_afrc
Date Created 2012-05-15
Date Modified 2012-09-05
ID 13271
Reference URL https://collections.lib.utah.edu/ark:/87278/s6rr21v9
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